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[email protected]CVE-2022-20940

HistoryNov 15, 2022 - 9:15 p.m.

CVE-2022-20940

2022-11-1521:15:34

CWE-203

[email protected]

web.nvd.nist.gov

cve-2022-20940

cisco

firepower

threat defense

ftd software

tls

vulnerability

remote attacker

sensitive information

bleichenbacher attack

ssl decryption

chosen-ciphertext attack

cryptanalytic operations

nvd

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

5.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

46.7%

JSON

A vulnerability in the TLS handler of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to gain access to sensitive information.

This vulnerability is due to improper implementation of countermeasures against a Bleichenbacher attack on a device that uses SSL decryption policies. An attacker could exploit this vulnerability by sending crafted TLS messages to an affected device, which would act as an oracle and allow the attacker to carry out a chosen-ciphertext attack. A successful exploit could allow the attacker to perform cryptanalytic operations that may allow decryption of previously captured TLS sessions to the affected device.

Affected configurations

NVD

Node

ciscofirepower_threat_defenseRange6.2.3–6.2.3.18

ciscofirepower_threat_defenseRange6.3.0–6.3.0.5

ciscofirepower_threat_defenseRange6.4.0–6.4.0.14

ciscofirepower_threat_defenseRange6.5.0–6.5.0.5

ciscofirepower_threat_defenseRange6.7.0–6.7.0.3

ciscofirepower_threat_defenseRange7.0.0–7.0.3

ciscofirepower_threat_defenseMatch6.6.0

ciscofirepower_threat_defenseMatch6.6.0.1

ciscofirepower_threat_defenseMatch6.6.1

ciscofirepower_threat_defenseMatch6.6.3

ciscofirepower_threat_defenseMatch6.6.4

ciscofirepower_threat_defenseMatch6.6.5

ciscofirepower_threat_defenseMatch6.6.5.1

ciscofirepower_threat_defenseMatch6.6.5.2

ciscofirepower_threat_defenseMatch7.1.0.0

ciscofirepower_threat_defenseMatch7.1.0.1

ciscofirepower_threat_defenseMatch7.1.0.2

CPENameOperatorVersion
cisco:firepower_threat_defensecisco firepower threat defensele6.2.3.18
cisco:firepower_threat_defensecisco firepower threat defensele6.3.0.5
cisco:firepower_threat_defensecisco firepower threat defensele6.4.0.14
cisco:firepower_threat_defensecisco firepower threat defensele6.5.0.5
cisco:firepower_threat_defensecisco firepower threat defensele6.7.0.3
cisco:firepower_threat_defensecisco firepower threat defensele7.0.3
cisco:firepower_threat_defensecisco firepower threat defenseeq6.6.0
cisco:firepower_threat_defensecisco firepower threat defenseeq6.6.0.1
cisco:firepower_threat_defensecisco firepower threat defenseeq6.6.1
cisco:firepower_threat_defensecisco firepower threat defenseeq6.6.3

CPE	Name	Operator	Version
cisco:firepower_threat_defense	cisco firepower threat defense	le	6.2.3.18
cisco:firepower_threat_defense	cisco firepower threat defense	le	6.3.0.5
cisco:firepower_threat_defense	cisco firepower threat defense	le	6.4.0.14
cisco:firepower_threat_defense	cisco firepower threat defense	le	6.5.0.5
cisco:firepower_threat_defense	cisco firepower threat defense	le	6.7.0.3
cisco:firepower_threat_defense	cisco firepower threat defense	le	7.0.3
cisco:firepower_threat_defense	cisco firepower threat defense	eq	6.6.0
cisco:firepower_threat_defense	cisco firepower threat defense	eq	6.6.0.1
cisco:firepower_threat_defense	cisco firepower threat defense	eq	6.6.1
cisco:firepower_threat_defense	cisco firepower threat defense	eq	6.6.3

Rows per page:

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CNA Affected

[
  {
    "vendor": "Cisco",
    "product": "Cisco Firepower Threat Defense Software",
    "versions": [
      {
        "version": "6.2.3",
        "status": "affected"
      },
      {
        "version": "6.2.3.1",
        "status": "affected"
      },
      {
        "version": "6.2.3.2",
        "status": "affected"
      },
      {
        "version": "6.2.3.3",
        "status": "affected"
      },
      {
        "version": "6.2.3.4",
        "status": "affected"
      },
      {
        "version": "6.2.3.5",
        "status": "affected"
      },
      {
        "version": "6.2.3.6",
        "status": "affected"
      },
      {
        "version": "6.2.3.7",
        "status": "affected"
      },
      {
        "version": "6.2.3.8",
        "status": "affected"
      },
      {
        "version": "6.2.3.10",
        "status": "affected"
      },
      {
        "version": "6.2.3.11",
        "status": "affected"
      },
      {
        "version": "6.2.3.9",
        "status": "affected"
      },
      {
        "version": "6.2.3.12",
        "status": "affected"
      },
      {
        "version": "6.2.3.13",
        "status": "affected"
      },
      {
        "version": "6.2.3.14",
        "status": "affected"
      },
      {
        "version": "6.2.3.15",
        "status": "affected"
      },
      {
        "version": "6.2.3.16",
        "status": "affected"
      },
      {
        "version": "6.2.3.17",
        "status": "affected"
      },
      {
        "version": "6.2.3.18",
        "status": "affected"
      },
      {
        "version": "6.6.0",
        "status": "affected"
      },
      {
        "version": "6.6.0.1",
        "status": "affected"
      },
      {
        "version": "6.6.1",
        "status": "affected"
      },
      {
        "version": "6.6.3",
        "status": "affected"
      },
      {
        "version": "6.6.4",
        "status": "affected"
      },
      {
        "version": "6.6.5",
        "status": "affected"
      },
      {
        "version": "6.6.5.1",
        "status": "affected"
      },
      {
        "version": "6.6.5.2",
        "status": "affected"
      },
      {
        "version": "6.4.0",
        "status": "affected"
      },
      {
        "version": "6.4.0.1",
        "status": "affected"
      },
      {
        "version": "6.4.0.3",
        "status": "affected"
      },
      {
        "version": "6.4.0.2",
        "status": "affected"
      },
      {
        "version": "6.4.0.4",
        "status": "affected"
      },
      {
        "version": "6.4.0.5",
        "status": "affected"
      },
      {
        "version": "6.4.0.6",
        "status": "affected"
      },
      {
        "version": "6.4.0.7",
        "status": "affected"
      },
      {
        "version": "6.4.0.8",
        "status": "affected"
      },
      {
        "version": "6.4.0.9",
        "status": "affected"
      },
      {
        "version": "6.4.0.10",
        "status": "affected"
      },
      {
        "version": "6.4.0.11",
        "status": "affected"
      },
      {
        "version": "6.4.0.12",
        "status": "affected"
      },
      {
        "version": "6.4.0.13",
        "status": "affected"
      },
      {
        "version": "6.4.0.14",
        "status": "affected"
      },
      {
        "version": "6.7.0",
        "status": "affected"
      },
      {
        "version": "6.7.0.1",
        "status": "affected"
      },
      {
        "version": "6.7.0.2",
        "status": "affected"
      },
      {
        "version": "6.7.0.3",
        "status": "affected"
      },
      {
        "version": "7.0.0",
        "status": "affected"
      },
      {
        "version": "7.0.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.1",
        "status": "affected"
      },
      {
        "version": "7.0.1.1",
        "status": "affected"
      },
      {
        "version": "7.0.2",
        "status": "affected"
      },
      {
        "version": "7.0.2.1",
        "status": "affected"
      },
      {
        "version": "7.0.3",
        "status": "affected"
      },
      {
        "version": "7.1.0",
        "status": "affected"
      },
      {
        "version": "7.1.0.1",
        "status": "affected"
      },
      {
        "version": "7.1.0.2",
        "status": "affected"
      }
    ]
  }
]